A magnetic drill with intelligent forward and reverse adjustment

Abstract

The present invention relates to the technical field of magnetic drills, and discloses a magnetic drill that is convenient for intelligent adjustment of forward and reverse rotation, comprising a fixed shell and a slide groove provided on the left side of the fixed shell, wherein a slide plate is slidably connected inside the slide groove. When drilling a steel structure workpiece, the magnetic drill that is convenient for intelligent adjustment of forward and reverse rotation fixes the fixed shell to the surface of the workpiece by magnetic force, and then rotates the regulating gear by a torsion frame provided on the surface of the regulating gear, so that the regulating gear drives the movable shell on one side of the slide plate to move downward, and the connecting shaft at the bottom of the movable shell drives the drill bit downward to drill the workpiece. In this process, when the drill bit changes from forward to reverse rotation, the movable shell is automatically controlled to stop moving downward by a brake block, and at this time, the worker cannot drive the movable shell to move, so the drill bit automatically stops moving when reversing, avoiding drilling abnormalities, and achieving the purpose of automatically controlling the drill bit to stop moving when the drill bit reverses, which is conducive to the normal progress of the drilling process.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic drills, in particular to a magnetic drill which is convenient for intelligent adjustment of forward and reverse rotation. Background Art

[0002] The magnetic drill is also called a magnetic base drill or a magnet drill. After power is turned on, the changing current at the bottom of the magnetic drill generates a magnetic field, which is adsorbed on the steel structure. The magnetic drill motor then runs at high speed to drive the drill bit to drill holes in the steel structure. In the actual drilling process, for some steel materials, the drill bit needs to be intermittently changed from forward to reverse rotation, and the drill slag generated inside the hole can be discharged in time through reversal.

[0003] Since the drill bit movement of the magnetic drill is manually controlled, and the forward and reverse switching of the drill bit is automatically controlled by the magnetic drill itself, when the drill bit movement is manually controlled, once the drill bit reverses, it is necessary to control the drill bit to stop moving to avoid drilling abnormalities. Manual control of the drill bit movement is prone to errors, which is not conducive to the normal drilling process. In addition, when the drill bit reverses, a large amount of drill cuttings in the drill hole are brought out and splashed around, which can easily cause injuries to workers. Summary of the invention

[0004] In order to solve the above-mentioned problem that when the drill bit is reversed, it is easy to make mistakes by manually controlling the movement of the drill bit, which is not conducive to the normal drilling process. When the drill bit is reversed, a large amount of debris in the drill hole is brought out and splashed around, which is easy to cause injuries to workers. The above-mentioned automatic control of the drill bit to stop moving when the drill bit is reversed is realized, which is conducive to the normal drilling process. When the drill bit is reversed, the drill chips are limited from splashing around to avoid causing injuries to workers. The present invention is achieved through the following technical solutions: A magnetic base drill that is easy to adjust the forward and reverse rotation intelligently, including a fixed shell and a slide groove arranged on the left side of the fixed shell, the inner sliding groove of the slide groove A slide plate is connected, a moving shell is fixedly connected to the left side of the slide plate, a receiving cavity is provided inside the moving shell, a connecting shaft is inserted into the bottom of the receiving cavity, an extrusion block is fixedly connected to the side of the connecting shaft, a rotating wheel is arranged on the right side of the connecting shaft, a friction block is slidably connected to the bottom of the rotating wheel, a receiving groove is provided on the side of the rotating wheel, a receiving block is slidably connected to the inside of the receiving groove, a first air hole is provided on the inner right wall of the receiving cavity, an air plate is slidably connected to the inside of the first air hole, a second air hole is provided on the side of the slide plate, a brake block is slidably connected to the inside of the second air hole;

[0005] A guide groove is provided at the bottom of the movable shell, a guide rod is inserted into the guide groove, and a blocking ring is fixedly connected to the bottom of the guide rod.

[0006] Furthermore, a drill bit is provided at the bottom of the connecting shaft, and a regulating gear is meshedly connected to the side of the slide plate. The movement of the slide plate is controlled by rotating the regulating gear, thereby controlling the movement of the drill bit at the bottom of the movable shell.

[0007] Furthermore, one side of the receiving block is set as a plane, and the other side is set as an arc-shaped surface. When the connecting shaft rotates forward, the side extrusion block is driven to squeeze the arc-shaped surface of the receiving block, and the receiving block is squeezed into the receiving groove. When the connecting shaft is reversed, the side extrusion block is driven to squeeze the plane of the receiving block, so that the receiving block drives the rotating wheel to rotate.

[0008] Furthermore, the receiving block is connected to the inner wall of the receiving groove via a spring and is compressed when the arc surface of the receiving block is squeezed.

[0009] Furthermore, the air plate is initially partially located outside the first air hole, providing displacement space when squeezed by the receiving block.

[0010] Furthermore, the brake block is initially partially located outside the second air hole and contacts the inner wall of the slide groove. When the brake block presses the inner wall of the slide groove, the movable shell is braked.

[0011] Furthermore, the first pore is connected to the second pore, and when the air pressure inside the first pore increases, the air pressure inside the second pore can only increase synchronously.

[0012] The present invention provides a magnetic drill that facilitates intelligent adjustment of forward and reverse rotation. It has the following beneficial effects:

[0013] 1. The magnetic base drill which is easy to adjust for forward and reverse rotation intelligently, when drilling holes in steel structure workpieces, fixes the fixed shell to the surface of the workpiece by magnetic force, and then rotates the regulating gear by a torsion frame arranged on the surface of the regulating gear. The regulating gear drives the movable shell on one side of the slide to move downward, and the connecting shaft at the bottom of the movable shell drives the drill bit downward to drill holes in the workpiece. In this process, when the drill bit changes from forward to reverse rotation, the brake block automatically controls the movable shell to stop moving downward. At this time, the worker cannot drive the movable shell to move, so the drill bit automatically stops moving when reversing to avoid drilling abnormalities. The purpose of automatically controlling the drill bit to stop moving when the drill bit reverses is achieved, which is conducive to the normal drilling process.

[0014] 2. The magnetic drill with easy forward and reverse intelligent adjustment can quickly bring out the drill cuttings in the borehole when the drill bit is reversed, and spray them out from the borehole to the surroundings. Since a retaining ring is provided, the retaining ring is inserted into the guide groove through the upper guide rod, so that when the drill bit moves downward, the retaining ring always surrounds the borehole. Therefore, the drill cuttings flying out of the borehole will be blocked by the retaining ring to prevent flying around and injuring workers. This achieves the purpose of limiting the flying of drill cuttings to avoid injuring workers when the drill bit is reversed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0016] Figure 2 The structure of the present invention Figure 1 The enlarged schematic diagram of part A in the middle;

[0017] Figure 3 The structure of the present invention Figure 1 The enlarged schematic diagram of part B in the middle;

[0018] Figure 4 It is a top view and cross-sectional schematic diagram of the rotor structure of the present invention;

[0019] Figure 5 It is a top view schematic diagram of the connecting shaft of the structure of the present invention;

[0020] Figure 6 It is a schematic diagram of the connection mechanism between the structure of the present invention and the guide rod;

[0021] Figure 7 It is a three-dimensional schematic diagram of the connection between the guide rod and the material blocking groove of the structure of the present invention.

[0022] In the figure: 1. fixed shell; 2. slide groove; 3. slide plate; 4. movable shell; 5. connecting shaft; 6. drill bit; 7. regulating gear; 8. extrusion block; 9. rotating wheel; 10. receiving groove; 11. receiving block; 12. friction block; 13. first air hole; 14. air plate; 15. second air hole; 16. brake block; 17. guide groove; 18. guide rod; 19. baffle ring; 20. receiving cavity. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The embodiment of the magnetic drill that facilitates forward and reverse intelligent adjustment is as follows:

[0025] Example:

[0026] See also Figure 1-Figure 7, a magnetic drill convenient for forward and reverse intelligent adjustment, comprising a fixed shell 1 and a slide groove 2 opened on the left side of the fixed shell 1, a slide plate 3 is slidably connected inside the slide groove 2, a movable shell 4 is fixedly connected to the left side of the slide plate 3, a receiving cavity 20 is opened inside the movable shell 4, a connecting shaft 5 is inserted at the bottom of the receiving cavity 20, an extrusion block 8 is fixedly connected to the side of the connecting shaft 5, a rotating wheel 9 is arranged on the right side of the connecting shaft 5, a friction block 12 is slidably connected to the bottom of the rotating wheel 9, a receiving groove 10 is opened on the side of the rotating wheel 9, a receiving block 11 is slidably connected inside the receiving groove 10, a first air hole 13 is opened on the inner right wall of the receiving cavity 20, an air plate 14 is slidably connected inside the first air hole 13, a second air hole 15 is opened on the side of the slide plate 3, a brake block 16 is slidably connected inside the second air hole 15;

[0027] A guide groove 17 is formed at the bottom of the movable shell 4 , a guide rod 18 is inserted into the guide groove 17 , and a blocking ring 19 is fixedly connected to the bottom of the guide rod 18 .

[0028] Furthermore, a drill bit 6 is provided at the bottom of the connecting shaft 5, and a regulating gear 7 is meshedly connected to the side of the slide plate 3. The movement of the slide plate 3 is controlled by rotating the regulating gear 7, thereby controlling the movement of the drill bit 6 at the bottom of the movable shell 4.

[0029] Furthermore, one side of the receiving block 11 is set as a plane, and the other side is set as an arc-shaped surface. When the connecting shaft 5 rotates forward, the side extrusion block 8 is driven to squeeze the arc-shaped surface of the receiving block 11, and the receiving block 11 is squeezed and compressed into the receiving groove 10. When the connecting shaft 5 is reversed, the side extrusion block 8 is driven to squeeze the plane of the receiving block 11, so that the receiving block 11 drives the rotating wheel 9 to rotate.

[0030] Furthermore, the receiving block 11 is connected to the inner wall of the receiving groove 10 via a spring, and is compressed when the arc surface of the receiving block 11 is squeezed.

[0031] Furthermore, the air plate 14 is initially partially located outside the first air hole 13 , providing displacement space when being squeezed by the receiving block 11 .

[0032] Furthermore, the brake block 16 is initially partially located outside the second air hole 15 and in contact with the inner wall of the slide groove 2 . When the brake block 16 presses the inner wall of the slide groove 2 , the movable shell 4 is braked.

[0033] Furthermore, the first air hole 13 and the second air hole 15 are interconnected, and when the air pressure inside the first air hole 13 increases, the air pressure inside the second air hole 15 can only increase synchronously.

[0034] Working principle: When drilling a steel structure workpiece, the fixed shell 1 is fixed to the surface of the workpiece by magnetic force, and then the regulating gear 7 is rotated by a torsion frame arranged on the surface of the regulating gear 7. The regulating gear 7 drives the movable shell 4 on one side of the slide plate 3 to move downward, and the connecting shaft 5 at the bottom of the movable shell 4 drives the drill bit 6 downward to drill a hole in the workpiece. In this process, when the drill bit 6 changes from forward to reverse, the extrusion block 8 on the side of the connecting shaft 5 squeezes the plane of the receiving block 11, causing the receiving block 11 to drive the rotating wheel 9 to rotate through the receiving groove 10. Since the torsional force of the rotating wheel 9 is much greater than the friction force of the bottom friction block 12, the rotating wheel 9 rotates normally.

[0035] When the wheel 9 rotates, the receiving block 11 inside the receiving groove 10 is thrown out, causing squeezing of the air plate 14 on the right side. The air plate 14 is squeezed and continuously retracted into the first air hole 13. Since the first air hole 13 and the second air hole 15 are interconnected, and the brake block 16 is initially partially located on the outside of the second air hole 15 and contacts the inner wall of the slide groove 2, when the gas inside the first air hole 13 is compressed by the air plate 14, the gas pressure inside the second air hole 15 increases synchronously, causing the brake block 16 to squeeze the inner wall of the slide groove 2 to generate a braking force. At this time, the worker cannot drive the movable shell 4 to move, so the drill bit 6 automatically stops moving when it is reversed to avoid drilling abnormalities. The purpose of automatically controlling the drill bit 6 to stop moving when the drill bit 6 is reversed is achieved, which is conducive to the normal drilling process.

[0036] When the drill bit 6 is reversed, the drill cuttings inside the borehole are quickly taken out and sprayed out from the borehole to the surroundings. Since a retaining ring 19 is provided, the retaining ring 19 is inserted into the guide groove 17 through the upper guide rod 18, so that when the drill bit 6 moves downward, the retaining ring 19 always surrounds the borehole. Therefore, the drill cuttings flying out of the borehole will be blocked by the retaining ring 19 to prevent flying around and injuring workers. The purpose of limiting the flying of drill cuttings to avoid injuring workers when the drill bit 6 is reversed is achieved.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic drill that facilitates forward and reverse intelligent adjustment, comprising a fixed shell (1) and a slide groove (2) provided on the left side of the fixed shell (1), wherein a slide plate (3) is slidably connected inside the slide groove (2), a movable shell (4) is fixedly connected to the left side of the slide plate (3), a receiving cavity (20) is provided inside the movable shell (4), and a connecting shaft (5) is inserted into the bottom of the receiving cavity (20), characterized in that: The side of the connecting shaft (5) is fixedly connected to an extrusion block (8); the right side of the connecting shaft (5) is provided with a rotating wheel (9); the bottom of the rotating wheel (9) is slidably connected to a friction block (12); the side of the rotating wheel (9) is provided with a receiving groove (10); the interior of the receiving groove (10) is slidably connected to a receiving block (11); the inner right wall of the receiving cavity (20) is provided with a first air hole (13); the interior of the first air hole (13) is slidably connected to an air plate (14); the side of the sliding plate (3) is provided with a second air hole (15); the interior of the second air hole (15) is slidably connected to a brake block (16); A guide groove (17) is provided at the bottom of the movable shell (4), a guide rod (18) is inserted into the interior of the guide groove (17), and a blocking ring (19) is fixedly connected to the bottom of the guide rod (18); the air plate (14) is initially partially located outside the first air hole (13); The brake block (16) is initially partially located outside the second air hole (15) and in contact with the inner wall of the slide groove (2); one side of the receiving block (11) is configured as a plane, and the other side is configured as an arc surface; the first air hole (13) and the second air hole (15) are connected to each other; When the connecting shaft (5) rotates forward, the side extrusion block (8) is driven to squeeze the arc surface of the receiving block (11), and the receiving block (11) is squeezed and inserted into the receiving groove (10). When the connecting shaft (5) rotates reversely, the side extrusion block (8) is driven to squeeze the plane of the receiving block (11), so that the receiving block (11) drives the rotating wheel (9) to rotate.

2. The magnetic drill with intelligent forward and reverse rotation adjustment according to claim 1, characterized in that: A drill bit (6) is provided at the bottom of the connecting shaft (5), and a regulating gear (7) is meshingly connected to the side of the slide plate (3).

3. The magnetic drill with intelligent forward and reverse rotation adjustment according to claim 1, characterized in that: The receiving block (11) is connected to the inner wall of the receiving groove (10) via a spring.

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